HEALPix for Mac

A software for hierarchical equal area isoLatitude pixelization of a sphere

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HEALPix is an open source software for pixelization, hierarchical indexation, synthesis, analysis, and visualization of data on the sphere.

As suggested in the name, the pixelization will produce a subdivision of a spherical surface in which each of the pixels covers the same surface area as every other pixel.

The current version of the HEALPix package (to be updated semi-regularly) contains a suite of programs which allow all of the following (and more):· Programs for fast simulation and analysis of full-sky maps of CMB temperature and polarization anisotropy (sky maps preview) up to sub-arcminute angular resolution· C, C++, Fortan 90, IDL, Java, Python implementation of most routines and facilities (for third party implementation in other languages, see this HEALPix wiki page)· Most critical routines are parallelized· Forward and backward scalar and spin-weighted Spherical Harmonics Transforms· Highly optimised Spherical Harmonics Transforms library (libsharp) used by all implementations for better performance· Routines to read and write the FITS formatted map data sets, and allowing the IDL, Java or Python display and processing of your results· Fortran 90 and C++ visualization facilities· Comprehensive documentation (PDF and HTML)· Automated installation and build scripts· Programs to search the maps for pixel neighbours and extrema of a random field· Pixel queries in discs, triangles, polygons and strips· Programs to manage, modify and rotate spherical harmonic coefficients of arbitrary maps· Programs to perform median filtering of sky maps· Constrained and non-Gaussian realization facilities.· Mask processing facilities· An IDL toolkit for pixel manipulation and FITS file manipulation.· Facilities to output HEALPix maps into Google Earth/Google Sky compliant images and into DomeMaster format used in planetariums.